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What is the difference between HTTP status code 200 (cache) vs status code 304?

... cache them (e.g. future-dated Expires or Cache-Control: max-age headers), and that at the time you triggered the new request, those cached objects were still stored in local cache and had not yet expired. 304s, on the other hand, are the response of the server after the browser has checked if a fi...
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Is there a standard sign function (signum, sgn) in C/C++?

I want a function that returns -1 for negative numbers and +1 for positive numbers. http://en.wikipedia.org/wiki/Sign_function It's easy enough to write my own, but it seems like something that ought to be in a standard library somewhere. ...
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Initializing a list to a known number of elements in Python [duplicate]

Right now I am using a list, and was expecting something like: 9 Answers 9 ...
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Problem in running .net framework 4.0 website on iis 7.0

... Go to IIS manager and click on the server name. Then click on the "ISAPI and CGI Restrictions" icon under the IIS header. Change ASP.NET 4.0 from "Not Allowed" to "Allowed". ...
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Can a foreign key be NULL and/or duplicate?

...als. Suppose further that each proposal only has one sales person assigned and one client. So your proposal table would have two foreign keys, one with the client ID and one with the sales rep ID. However, at the time the record is created, a sales rep is not always assigned (because no one is fre...
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In eclipse, unable to reference an android library project in another android project

... project it all went fine. I guess that this must be something to do with android using ant underneath the covers. Edit: The project name needs match the folder name on the file system. What you are seeing in the Project Properties->Android->Library Reference is a relative file system path. ...
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Synchronizing a local Git repository with a remote one

...er in these repositories, we override the local ones with the remote ones, and if there are files in local repositories that do not exist in the remote, the local files get removed. ...
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Can every recursion be converted into iteration?

...u always turn a recursive function into an iterative one? Yes, absolutely, and the Church-Turing thesis proves it if memory serves. In lay terms, it states that what is computable by recursive functions is computable by an iterative model (such as the Turing machine) and vice versa. The thesis does ...
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How do I remove all non-ASCII characters with regex and Notepad++?

...SCII values: [^\x00-\x7F]+ Tick off 'Search Mode = Regular expression', and click Find Next. Source: Regex any ASCII character share | improve this answer | follow ...
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Difference between return and exit in Bash functions

What is the difference between the return and exit statement in Bash functions with respect to exit codes? 10 Answers ...